Practice

Today we had another problem set to work on:

p.263 Conceptual #6 & 12 + p.273 #70, 74, 78

You had the whole period as work time.

Here are solutions to yesterday's suggested homework problems:

#39


#40 (this sets up a system of three equations and three unknowns, which you then need to solve)


#87 (this sets up a system of three equations and three unknowns, which you then need to solve)